Push-broom-type vacuum cleaner



Jan. 16, 1940. w. LEATHERS 2,187,164-

PUSH-BROOM-TYPE YACUUM CLEANER Original Filed A ril 27, 1932 Patented Jan. 16, 1940 UNITED STATES 7 2,187,164 PUSH-BROOM-TYPE VACUUM CLEANER Ward Leathers,

Haworth, N. J., assignor to Quadrex Corporation, New York, N. Y., a corporation of Delaware Original application April 27, 1932, Serial No. 607,781. Divided and this application January 21, 1937, Serial No. 122,196

3 Claims. (01. 15- 16) The object of my invention is to produce a suction fioor cleaner for serving a multiplicity of cleaning purposes in the highest conceivable manner and with the least weight and trouble.

This application is a division of my application for Letters Patent, Serial No. 607,781, filed April 27, 1932, now Letters Patent 2,072,892, issued March 9, 1937.

In order to set forth my invention so that all those familiar with these arts may understand it, I have prepared the following specifications to which I have appended a drawing, of which:

Figure 1-sh0ws my complete floor cleaner partially sectioned.

Figure 2 shows a cross-section of the motorsuction-unit, filter, and dirt receptacle.

The normal floor line I shows a cleaner in its normally used position. The fioor line 2 in dotted lines shows the machine in use in a position horizontal with the fioor. 3 is a motor-suctionunit shown in dotted lines. 4 is an outside casing for same joined to the blower casing 5 by screws. 6 is a removable dirt-receptacle. A filter tube 1 is surrounded by a filter casing 8, provided with outlet ports for filtered-air 9 and joined to the outside casing 6 as by screws. A handle tube I is shown rigidly attached to the casing 8. A cord is provided at H. A rubber bumper I2 is useful in case the machine is dropped on the fioor.

Figure 2 shows the motor and blower of the motor-suctiomunit, the filter, and dirt receptacle assembly in cross-section. I3 is a motor mounted on suitable bearings in the casing member 4. 4 is shown as a die casting wherein the side walls of the inner motor housing and the outer motor housing are in one die casting. This same casting has a back wall l for the air passage l6 which leads to the filter. Clean air leaking in around the dirt-receptacle 6 is drawn into the motor at 20 by a motor ventilating fan 2|, through a baflie plate 22, and exhausted at the port 23. The motor l3 drives a main suction fan 25 which has a' spillway around its periphery into the chamber located between the inner and outer walls of the part 4. The spring 26 holds the receptacle 6 in engagement with a groove 21 in the part 4, which part has been so designed for die casting purposes that it has integral with it a ring member 28 to which the filter is attached and to which the filter cover 8 is also joined as by screws. The filter l is made of a cylinder of light, tightly woven, porous material. It has an annular top 29 suitably gored and sewn. 29 is sewn on its periphery to the upper edge of the cylinder 1. An inner piece of fabric 30 (shown in cross-section) is joined to the cylinder 1 by sewing along two sides, leaving an opening at the top 3| over which the dirtladen air from the main suction fan 25 disposes the dirt. The part 30 thus forms, together with the side wall 'of I, a tubular passage, the lower end of which is joined to the die casting 4 by means of a spring clip 32 which fits in a suitable opening. The rim of the cylinder fabric is joined to 4 by a wire or ring 33 or other suitable attachment. A wire rod 34 suitably supported from the part 4 passed up at the outside of the filter and supports it by being tied thereto at 35.

I claim:

1. In a suction cleaner, the combination of a filter unit, a dirt-laden air duct-connector, and a motor-suction-unit all in rigid interconnected longitudinal arrangement with the filterunit at the top of the cleaner, the said air-duct in the middle but at one side and wholly between the filter unit at the top and. the motor-suction-unit at the bottom, an upwardly impinging spring joined to the top of said motor-suction-unit and a ring member joined to the top of said ductconnector, said combination surrounding on three sides a manually, removable dirt receptacle being substantially cylindrical in form and having a diameter substantially that of the motorsuction-unit, a rigid ventilated cylindrica1 filtercover surrounding a cylindrical filter, joined to the top of said connector and said ring member and supporting an operators handle at the top, said receptacle making a substantially airtight juncture with said ring member when held upward by said spring, the said combination of parts making a substantially annular structure supportable on a fioor nozzle connectab with the motor-suction-unit.

2. In a suction cleaner, a motor-suction-unit, a casing for said motor comprising an inner sleeve holding said motor and an outer substantially concentric portion constituting a chamber through which dirt-laden air is delivered by the fan of said unit, said outer chamber beingextended upwardly by means of walls parallel with the motor axis but at the side thereof, an upwardly impinging spring joined to the top of said motor-suction-unit and a ring member joined to the top of said duct-connector, a sleeve-like filter, the lower end of which provides communication with the said chamber extension, a substantially cylindrical rigid filter-cover surrounding said filter and joined at the lower end to the aforesaid upwardly extending portion of the exhaust chamber and said ring member, a handle for operating the cleaner mounted on the upper end of the rigid filter-cover, a removable dirt receptacle at the side of said upwardly extended section in communication at its top with the bottom of said filter, said receptacle making a substantially air-tight juncture with said ring member when held upward by said spring and with all said parts forming a substantially annular and concentric unit substantially coaxial with the motor.

3. In a suction cleaner, a combination of motor-suction-unit, a casing for the motor of said unit substantially concentric with the motor shaft, an annular dirt laden air chamber surrounding said motor casing substantially concentric with the motor shaft, an upwardly impinging spring joined to the top of said casing, a dirt laden air duct longitudinally disposed above and toward the side of said chamber in communication therewith and having a ring member rigidly joined to the top thereof, a manuall: removable dirt receptacle disposed at the side 0 said duct above said motor casing, the combine: outer walls of said duct and dirt receptacle form ing a middle section substantially coaxial witl the shaft of said motor, a filter substantiall: coaxial with said motor shaft located above sai air duct and said dirt receptacle and in communication therewith, a rigid sleeve surrounding said filter joined to said duct and said ring mem' her at its bottom and to a rigid cap at the to thereof to which the operators handle is attached, said receptacle making substantially air tight juncture with said ring member when helc upwardly by said spring.

WARD LEA'I'HERS. 

